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Inspection Procedure

  1. CHECK POWER DOOR LOCK OPERATION 
    1. NG: GO TO POWER DOOR LOCK CONTROL SYSTEM (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    2. OK: Go to next step. 
  2. CHECK DTC 
    1. Data list (for MANUAL UP/DOWN switch)
      1. Using the hand-held tester, check that DTC B1221 is output when the switch is operated.

        HINT:

        Using DTC "B1221" which is a code when any of the master switch is constantly turned on, the MANUAL UP/DOWN switch operation can be monitored. If there is an output of DTC "B1221" when the switch is operated, the switch circuit can be considered normal.

        Standard [Driver side J/B (body ECU) (Switch condition)]: 

        STANDARD [DRIVER SIDE J/B (BODY ECU) (SWITCH CONDITION)]

        Item Measurement Item/Range (Display) Normal condition
        (Power window switch circuit on driver's door) Manual UP/DOWN switch signal/B1221 B1221: Manual UP/DOWN switch ON
        No output of B1221: Manual UP/DOWN switch OFF
    1. NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    2. OK: Go to next step. 
  3. CONFIRM REMOTE CONTROL POWER WINDOW BY MASTER SWITCH OPERATION 

    HINT:

    • When the rear door does not operate by master switch, proceed to "A".
    • When the passenger's door does not operate by master switch, proceed to "B".
    1. B: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR MPX2 (D17-8) <==> MPX2 (F13-8) WIRE HARNESS 
    2. A: Go to next step. 
  4. CHECK CONTINUITY OF COMMUNICATION LINE 
    1. Disconnect the B5 and B6 connectors of the driver side J/B.
    2. Disconnect the R15 power window regulator switch assy rear (LH side) connector.
    3. Disconnect the R16 power window regulator switch assy rear (RH side) connector.
      Fig 1: Checking Continuity Of Communication Line
      G03372774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Check the continuity of each terminal of the disconnected connectors.

      Standard (Rear door LH): 

      CONTINUITY OF EACH TERMINAL OF DISCONNECTED CONNECTORS

      Symbols (Terminal No.)
      (Driver side J/B <==> Switch)      		 Specified condition
      MPX4 <==> MPX1 (B6-5 <==> R15-8) Continuity

      Standard (Rear door RH): 

      CONTINUITY OF EACH TERMINAL OF DISCONNECTED CONNECTORS

      Symbols (Terminal No.)
      (Driver side J/B <==> Switch)      		 Specified condition
      MPX5 <==> MPX1 (B5-1 <==> R16-8) Continuity

      HINT:

      • When the rear door LH does not inspect the continuity, proceed to "NG-A".
      • When the rear door RH does not inspect the continuity, proceed to "NG-B".
    1. NG-A: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR MPX4 (B6-5) <==> MPX1 (R15-8) WIRE HARNESS 
    2. NG-B: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR MPX5 (B5-1) <==> MPX1 (R16-8) WIRE HARNESS 
    3. OK: REPLACE DRIVER SIDE JUNCTION BLOCK ASSY 
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